Continuous aluminum-plastic separation pyrolysis system

Abstract

The utility model relates to a continuous aluminum-plastic separation pyrolysis system, which comprises a crushing device, a conveying device, a preheating drying device, a hot melting device, a pyrolysis device, a condensing device, a cooling device, a screening device and a storage tank, the preheating and drying device is used for preheating and drying the crushed materials; the hot melting device is used for heating and melting the preheated and dried materials; the pyrolysis device is used for pyrolyzing the heated and molten material into a gaseous substance and a solid substance; the condensing device is used for condensing the gaseous substance to produce pyrolysis oil; the cooling device cools the solid substance; the screening device is used for screening the cooled solid substances with different components; the system can realize continuous aluminum-plastic separation and pyrolysis of aluminum-plastic products, the production efficiency is improved, the labor cost is saved, the whole production process is relatively closed, environment-friendly, safe and reliable, and the system is suitable for industrial and large-scale production.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum-plastic waste treatment, in particular to a continuous aluminum-plastic separation pyrolysis system. Background Art

[0002] With the development of society, there are more and more artificial products, especially aluminum foil and plastic composite products, which are mainly used for food packaging, medicine packaging, electronic product packaging, chemical packaging, etc. that need to be kept away from light, and have become indispensable items.

[0003] The recycling rate of used aluminum-plastic products is low, and most of them are disposed of by landfill, incineration and other methods, which causes great waste of resources and energy. At present, there are two main methods for recycling aluminum-plastic products.

[0004] Method 1: Directly granulate and process into other products, which not only fails to reflect the maximum value of plastics but also causes a waste of metal resources;

[0005] Method 2: Use a cracking furnace to heat and crack the plastic to gasify it. After the cracking gas is condensed and oiled, the non-condensable gas is collected as its own heating fuel. After the cracking is completed and cooled, the collected carbon black and aluminum foil slag are crushed and screened before sale.

[0006] This treatment method of method 2 can achieve high-value utilization, but there are the following problems in actual production: the existing cracking furnace is intermittent production, which not only wastes time in loading and unloading, but also easily causes environmental pollution due to odor and ash emissions when the furnace is turned on; and the furnace is loaded with up to 10 tons of material at a time. Once the temperature is not well controlled, a large amount of cracking gas is easily produced rapidly, which can easily cause safety hazards and lead to a low production safety factor.

[0007] Therefore, it is urgent to develop a continuous aluminum-plastic separation pyrolysis system to avoid the problems of the existing cracking furnace using an intermittent production method. Summary of the invention

[0008] In view of one or more of the above problems, the purpose of the utility model is to provide a continuous aluminum-plastic separation pyrolysis system, which realizes continuous aluminum-plastic separation pyrolysis of aluminum-plastic products through a crushing device, a conveying device, a preheating and drying device, a hot melting device, a pyrolysis device, a condensing device, a cooling device, a screening device and a storage tank, thereby avoiding the problems of the existing cracking furnace using an intermittent production method.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A continuous aluminum-plastic separation pyrolysis system, comprising:

[0011] Crushing device, used to crush the material into small pieces that are convenient for pyrolysis production;

[0012] A preheating and drying device, used for preheating and drying the crushed material; a conveying device is provided between the preheating and drying device and the crushing device, and the conveying device is used for conveying the crushed material to the preheating and drying device;

[0013] A hot melt device, whose feed port is connected to the discharge port of the preheating and drying device, and the hot melt device is used to heat and melt the preheated and dried material;

[0014] A pyrolysis device, whose feed port is connected to the discharge port of the hot melting device, and the pyrolysis device is used to pyrolyze the hot-melted material into gaseous substances and solid substances;

[0015] A condensing device, whose air inlet is connected to the air outlet of the pyrolysis device, and the condensing device is used to condense the gaseous substance and produce cracking oil;

[0016] A cooling device, whose feed port is connected to the discharge port of the pyrolysis device, and the cooling device is used to cool the solid matter;

[0017] A screening device, whose feed port is connected to the discharge port of the cooling device, is used to screen the solid substances of different components after cooling.

[0018] Preferably, the preheating and drying device is configured as an open impeller, the cylinder wall of the open impeller is a sandwich structure, the interlayer of the cylinder wall is provided with a heat medium inlet and a heat medium outlet, and the heat medium inlet and the heat medium outlet are respectively connected to the condensing device.

[0019] Preferably, the hot melt device is configured as a sandwich closed impeller, the cylinder wall of the sandwich closed impeller is a sandwich structure, and an air outlet and a hot air inlet are provided on the cylinder wall.

[0020] Preferably, the discharge port is provided on the cylinder wall, and the discharge port is a tapered outlet from large to small.

[0021] Preferably, the pyrolysis device includes a furnace body, a combustion chamber is provided in the furnace body, a partition is provided on the top of the combustion chamber, a non-interlayer closed impeller is provided on the partition, a gas collecting pipe is provided on the top of the impeller barrel of the non-interlayer closed impeller, and the gas collecting pipe extends out of the top of the furnace body.

[0022] Preferably, the combustion chamber is provided with a combustion port, and a burner is provided at the combustion port.

[0023] Preferably, the condensing device comprises a condenser and a storage tank, the condenser and the storage tank are connected via an oil pipe, and the storage tank is connected to the combustion chamber via a non-condensable gas pipeline.

[0024] Preferably, the condenser is a shell-and-tube water tank.

[0025] Preferably, the cooling device is configured as a sandwich closed impeller, the cylinder wall of the sandwich closed impeller is a sandwich structure, the interlayer is configured in two sections, the cylinder wall of the interlayer in the front section is provided with a hot air outlet; the cylinder wall of the interlayer in the rear section is provided with a medium port and a discharge port, the discharge port is provided with a sealed discharger, and the medium port is connected to an external cooling liquid supply device.

[0026] Preferably, the screening device is configured as a vibrating screen, and the vibrating screen is provided with two different discharge ports, respectively used to discharge the solid matter of different components.

[0027] The utility model adopts the above technical solution, which has the following advantages:

[0028] 1. The continuous aluminum-plastic separation pyrolysis system provided by the utility model can realize continuous aluminum-plastic separation pyrolysis of aluminum-plastic products by arranging a crushing device, a conveying device, a preheating and drying device, a hot melting device, a pyrolysis device, a condensing device, a cooling device, a screening device and a storage tank, compared with a traditional cracking furnace, thereby improving production efficiency and saving labor costs. The entire production process is relatively closed, the environment is clean, safe and reliable, and it is suitable for industrial and large-scale production.

[0029] 2. In the continuous aluminum-plastic separation pyrolysis system provided by the utility model, the heated water in the condenser water tank can be pumped into the preheating and drying device to preheat the material fragments therein, thereby making full use of the energy of the equipment itself and realizing energy recycling.

[0030] 3. In the continuous aluminum-plastic separation pyrolysis system provided by the utility model, the fan of the cooling device can convey the hot air generated by the cooling device to the hot melting device as a heat source to heat the material.

[0031] 4. In the continuous aluminum-plastic separation pyrolysis system provided by the utility model, non-condensable gas can be sent from the oil tank to the pyrolysis device as fuel for the pyrolysis device, thereby further realizing the recycling of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The utility model is provided in one embodiment of the continuous aluminum-plastic separation pyrolysis system structure diagram.

[0033] Figure 2 This is a connection block diagram of a continuous aluminum-plastic separation pyrolysis system provided in this embodiment of the utility model.

[0034] Figure 3 It is a schematic diagram of the transverse cross-sectional structure of the heat medium inlet of the preheating and drying device provided in this embodiment of the utility model.

[0035] Figure 4 It is a schematic diagram of the transverse cross-sectional structure of the air outlet of the hot melt device provided in this embodiment of the utility model.

[0036] Figure 5 It is a schematic diagram of the transverse cross-sectional structure of the burner of the pyrolysis device provided in this embodiment of the utility model.

[0037] Figure 6 It is a rear view schematic diagram of the pyrolysis device provided in this embodiment of the utility model.

[0038] Figure 7 It is a front view schematic diagram of the cooling device provided in this embodiment of the utility model.

[0039] Figure 8 It is a schematic diagram of the transverse cross-sectional structure of the fan of the cooling device provided in this embodiment of the utility model.

[0040] Markings in the accompanying drawings:

[0041] 1 is a crushing device, 2 is a conveying device, 3 is a preheating and drying device, 301 is a hot medium inlet, 302 is a hot medium outlet, 4 is a hot melting device, 401 is an air outlet, 402 is a hot air inlet, 403 is a discharge port, 5 is a pyrolysis device, 501 is a combustion chamber, 502 is a steel plate, 503 is a gas collecting pipe, 504 is a combustion port, 505 is a burner, 506 is a non-interlayer closed impeller, 507 is a feed port, 508 is a discharge port, 6 is a cooling device, 601 is a medium port, 602 is a fan, 603 is a hot air outlet, 604 is a discharge port, 7 is a screening device, 8 is a condensing device, 801 is a condenser, 802 is a storage tank, 803 is a water pump, and 9 is a non-condensable gas pipeline. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the system or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "assembly", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The utility model provides a continuous aluminum-plastic separation pyrolysis system, which realizes continuous aluminum-plastic separation pyrolysis of aluminum-plastic products through a crushing device, a conveying device, a preheating and drying device, a hot melting device, a pyrolysis device, a condensing device, a cooling device, a screening device and a storage tank, thereby avoiding the problems of the existing cracking furnace using an intermittent production method.

[0046] Below, the embodiments of the utility model are described in detail with reference to the accompanying drawings.

[0047] Example 1

[0048] Reference Figure 1 and Figure 2 As shown, the continuous aluminum-plastic separation pyrolysis system provided in this embodiment includes a continuous aluminum-plastic separation pyrolysis system, including a crushing device 1, a conveying device 2, a preheating and drying device 3, a hot melting device 4, a pyrolysis device 5, a cooling device 6, a screening device 7 and a condensing device 8;

[0049] The crushing device 1 adopts the existing technology product, and a JD-500 knife crusher can be used. The used aluminum plastic waste is put into the crushing device 1. The crushing device 1 is used to crush the material into small pieces that are convenient for pyrolysis production. The maximum size of the small pieces is about 3 cm. The crushing device 1 can also be adjusted as needed to make the product small pieces of the size actually required.

[0050] Reference Figure 3 As shown, the preheating and drying device 3 is used to preheat and dry the crushed material; a conveying device 2 is provided between the preheating and drying device 3 and the crushing device 1, and the conveying device 2 is used to convey the crushed material to the preheating and drying device 3;

[0051] In a specific application, the material crushed by the crushing device 1 is transported to the preheating and drying device 3 by the conveying device 2. The conveying device 2 may be a conveyor belt driven by a motor, one end of which receives the material discharged from the discharge port of the crushing device 1, and the other end of which is located above the feed port of the preheating and drying device 3. The conveyor belt delivers the crushed material into the preheating and drying device 3. The conveying device 2 may be a technical product.

[0052] The preheating and drying device 3 is configured as an open impeller, the cylinder wall of the open impeller is a sandwich structure, that is, the cylinder wall is a double-layer structure, and the interlayer of the cylinder wall is provided with a heat medium inlet 301 and a heat medium outlet 302, and the heat medium inlet 301 and the heat medium outlet 302 are respectively connected to the condensing device 8. Specifically, the condensing device 8 includes a condenser 801, and the condenser 801 includes a condensing water tank, and the hot water in the condensing water tank is used as a heat source. The condensing water tank is connected to the heat medium inlet and the heat medium outlet through a pipeline, and a water pump 803 is provided on the inlet pipeline, and the hot water is pumped into the interlayer of the cylinder wall by the water pump 803 to preheat the crushed material in the open impeller, and the cooled water is returned to the condensing water tank through the hot medium outlet; a stirring wheel is provided in the open impeller, and the stirring wheel is driven to rotate by a motor, and the crushed material can be stirred by the stirring wheel to preheat the material more quickly.

[0053] Reference Figure 4 As shown, the feed port of the hot melt device 4 is connected to the discharge port of the preheating and drying device 3, and the hot melt device 4 is used to heat and melt the preheated and dried material;

[0054] In a specific application, the hot melt device 4 is configured as a sandwich closed impeller. The cylinder wall of the sandwich closed impeller is a sandwich structure, and an air outlet 401 and a hot air inlet 402 are arranged on the cylinder wall. The hot air inlet 402 is connected to the hot air outlet 603 of the cooling device 6 through a pipeline. The cooling device 6 absorbs the heat emitted by the material therein, so that the air therein absorbs heat and becomes hot air, which is finally discharged from the hot air outlet 603 and enters the hot melt device 4 through the pipeline and the hot air inlet 402. A temperature sensor can be installed on the cylinder wall of the sandwich closed impeller of the hot melt device 4 to monitor the temperature of the cylinder wall. The temperature of the hot melt device 4 can be adjusted by controlling the start and stop of the fan 602. When the temperature of the hot melt device 4 is around 200 degrees, it can be heated for about 30 minutes to turn the material therein into a fluid.

[0055] The hot melt device 4 has a closed impeller in the interlayer, and a feed port is provided on the cylinder wall. The preheated and dried material enters the closed impeller, and the impeller is driven to rotate by the motor. The material is stirred by the impeller, and the material can be heated evenly.

[0056] In this embodiment, a discharge port 403 is provided on the cylinder wall of the closed impeller. The discharge port 403 is a tapered outlet from large to small. The material is pushed forward by the impeller. Since the discharge port is a tapered outlet, the outlet can be sealed by the material to prevent the cracking gas in the pyrolysis device 5 from entering the hot melt device 4 and causing the cracking gas to leak out.

[0057] Reference Figure 5 and Figure 6As shown, in this embodiment, the feed port 507 of the pyrolysis device 5 is connected to the discharge port 403 of the hot melting device 4, and the pyrolysis device 5 is used to pyrolyze the hot-melted material into gaseous substances and solid substances.

[0058] In a specific application, the pyrolysis device 5 includes a furnace body, in which a combustion chamber 501 is arranged, a partition 502 is arranged on the top of the combustion chamber 501, a non-interlayer closed impeller 506 is arranged on the partition 502, a gas collecting pipe 503 is arranged on the top of the impeller barrel of the non-interlayer closed impeller 506, the upper part of the gas collecting pipe 503 extends out of the top of the furnace body, and the non-interlayer closed impeller 506 is provided with a feed port 507 and a discharge port 508, the feed port 507 is connected with the discharge port 403 of the hot melt device 4, and the feed port 507 passes through the furnace wall at the upper part of the furnace body; the discharge port 508 is provided with a sealed discharger, and the sealed discharger passes through the side wall at the upper part of the furnace body and is connected with the feed port of the cooling device 6; the combustion chamber 501 is provided with a combustion port 504, and a burner is provided at the combustion port 504 to provide heat for the pyrolysis device 5.

[0059] A burner 505 is provided on the side wall of the combustion chamber 501 . The burner 505 is connected to the storage tank 802 through the non-condensable gas pipeline 9 . The non-condensable gas in the storage tank 802 enters the combustion chamber 501 through the non-condensable gas pipeline 9 and the burner 505 in sequence.

[0060] A temperature sensor may be installed on the tube wall of the closed impeller 506 without interlayer. The fuel in the combustion chamber 501 is burned to heat the steel plate 502. The heat radiation of the high-temperature steel plate 502 causes the material in the closed impeller 506 to be pyrolyzed. The closed impeller 506 without interlayer is made of high-temperature resistant metal and can conduct heat very well. When the temperature of the pyrolysis device 5 is about 450 degrees, the plastic in the closed impeller 506 without interlayer is slowly gasified into cracked gas under the impeller's push. At the same time, the solid material moves toward the discharge port. The cracked gas is collected by the gas collecting pipe 503 and condensed into oil through the condenser 801 and enters the storage tank 802. The storage tank 802 is connected to the combustion chamber 501 through the non-condensable gas pipeline 9. The oil is retained in the storage tank 802, and the non-condensable gas is distributed from the storage tank 802 to the burner 505 through the non-condensable gas pipeline 9 for combustion. At the burner 505, it is mixed with air and burned to provide heat for the pyrolysis device 5. The non-condensable steam can be used as a fuel for production heating.

[0061] Specifically, the material in the non-interlayer closed impeller 506 is pyrolyzed for 40 minutes. After the plastic is completely gasified, the remaining aluminum foil slag and carbon black are pushed by the impeller to the discharge port 508 equipped with a sealed discharger to be discharged from the pyrolysis device 5. The sealed discharger is connected to the feed port of the cooling device 6, and the sealed discharger is a prior art product.

[0062] Reference Figure 1As shown, in this embodiment, the condensing device 8 includes a condenser 801 and a storage tank 802, the storage tank 802 is connected to the combustion chamber 501 through a non-condensable gas pipeline 9, and the condenser 801 and the storage tank 802 are connected through an oil pipe.

[0063] In a specific application, the air inlet of the condenser 801 is connected to the air outlet of the gas collecting pipe 503 of the pyrolysis device 5 through a pipeline, and the condenser 801 is used to condense the gaseous substances and produce cracking oil.

[0064] The condenser 801 is a tubular water tank, which can be a product of the prior art. The storage tank 802 is connected to the pyrolysis device 5 through a non-condensable gas pipe 9. The cracking gas is condensed into cracking oil and non-condensable gas through the condenser 801 and enters the storage tank 802. The cracking oil can be stored in the oil tank 802, and the non-condensable gas is sent from the oil tank 802 to the pyrolysis device 5 as fuel for the pyrolysis device 5; the heat after the cracking gas is condensed can heat the water in the condensing water tank, and the heated water in the condensing water tank is then pumped into the preheating drying device 3 to preheat the material fragments therein, making full use of the energy of the equipment itself and realizing energy recycling.

[0065] Reference Figure 7 and Figure 8 As shown, in this embodiment, the feed port of the cooling device 6 is connected to the discharge port 508 of the pyrolysis device 5, and the cooling device 6 is used to cool the solid matter.

[0066] In a specific application, the cooling device 6 is configured as a sandwich closed impeller, the cylinder wall of the sandwich closed impeller is a sandwich structure, the interlayer is configured as two independent sections separated front and back, a hot air outlet 603 and an air inlet connected to the interlayer are provided on the front cylinder wall, and the air inlet is connected to a fan 602; the hot air outlet 603 is connected to the hot air inlet of the hot melt device through a pipeline, and the hot air generated by the cooling device 6 is supplied to the hot melt device 4 to heat the material of the hot melt device 4.

[0067] The cylinder wall of the rear interlayer is provided with a medium port 601, which includes a medium inlet and a medium outlet. The medium inlet and the medium outlet are connected to a cooling water supply circulation device to realize cooling of the material in the interlayer closed impeller.

[0068] The sandwich closed impeller of the cooling device 6 is provided with a feed port and a discharge port 604, and the discharge port 604 is connected to the feed port of the screening device 7. The discharge port 604 is provided with a sealed discharger, and the material enters the sandwich closed impeller, is stirred and heat is dissipated, and is pushed out from the discharge port 604 into the screening device 7 under the push of the winch.

[0069] Specifically, the aluminum foil slag and carbon black enter the sandwich closed impeller through the feeding port of the sandwich closed impeller. The tube wall of the sandwich closed impeller is equipped with a temperature sensor. The aluminum foil slag and carbon black are cooled in the cooling device 6 for 20 minutes to reduce the material temperature to less than 60 degrees. The fan 602 of the cooling device 6 transports the hot air that absorbs heat to the hot melting device 4 as a heat source to heat the material. The material is stirred by the impeller in the sandwich closed impeller, which can accelerate the cooling of the material.

[0070] The cooled material is pushed by the stirring wheel in the cooling device 6 and enters the screening device 7 through the sealed discharger.

[0071] In this embodiment, the feed port of the screening device 7 is connected to the discharge port 604 of the cooling device 6, and the screening device 7 is used to screen the solid substances with different components after cooling.

[0072] In specific applications, the screening device 7 is a vibrating screen, which can adopt existing technology products. The vibrating screen is provided with two different discharge ports, which are used to discharge solid substances with different components respectively. Both discharge ports can be directly equipped with packaging bags to separate the carbon black and aluminum foil slag into bags and seal them. This process is carried out in a relatively closed environment, which can reduce dust.

[0073] The continuous aluminum-plastic separation pyrolysis system of the present embodiment can produce 46 kg of pyrolysis oil, 17 kg of aluminum foil and 12 kg of carbon black from 100 kg of aluminum-plastic packaging waste. With respect to traditional pyrolysis furnace, the continuous aluminum-plastic separation pyrolysis of aluminum-plastic products can be realized, production efficiency is improved, and labor cost is saved. The whole production process is relatively closed, the environment is clean, safe and reliable, and is suitable for industrialization and large-scale production.

[0074] Based on the continuous aluminum-plastic separation pyrolysis system in this embodiment, the aluminum-plastic separation pyrolysis method for aluminum-plastic waste products specifically includes the following steps:

[0075] S01, the crushing device 1 crushes the aluminum plastic waste material;

[0076] S02, the preheating and drying device 3 preheats and dries the crushed material;

[0077] S03, the hot melting device 4 heats and melts the preheated and dried material;

[0078] S04, the pyrolysis device 5 pyrolyzes the heated and melted material into gaseous substances and solid substances;

[0079] S05, the condensation device 8 condenses the gaseous substance to produce pyrolysis oil;

[0080] S06, the cooling device 6 cools the solid matter;

[0081] S07, the screening device 7 screens the cooled solid substances with different components.

[0082] In a specific application, the aluminum-plastic waste material put into the crushing device 1 is crushed; the conveying device 2 conveys the crushed material to the preheating and drying device 3; the preheating and drying device 3 preheats and dries the crushed material; the preheated and dried material enters the hot melt device 4, and the hot melt device 4 heats and melts the preheated and dried material; the heated and melted material is conveyed to the pyrolysis device 5, and the pyrolysis device 5 pyrolyzes the heated and melted material into gaseous matter and solid matter; the gaseous matter enters the condensing device 8, and the condensing device 8 condenses the gaseous matter and produces cracking oil, which is stored in the storage tank 802; the solid matter is conveyed to the cooling device 6, and the cooling device 6 cools the solid matter; the cooled solid matter is conveyed to the screening device 7, and the screening device 7 screens the cooled solid matter of different components, and finally packs them separately.

[0083] In this embodiment, in step S5, the heat generated in the process of condensing the gaseous substance by the condensation device 8 heats the water in the condensation water tank of the condenser 801. The water in the condensation water tank is heated and pumped into the preheating and drying device 3 through the water pump 803. The hot water is transported to the preheating and drying device 3 to preheat and dry the crushed material.

[0084] In this embodiment, in step S6, the cooling device 6 generates heat in the process of cooling the solid material, and transports the hot air generated therein to the hot melting device 4 through the fan 602 to heat and melt the preheated and dried material therein.

[0085] In this embodiment, further, the non-condensable gas in the storage tank 802 of the thermal condensation device 8 is transported to the pyrolysis device 5 as a heating fuel.

[0086] The pyrolysis device 5 inputs the non-condensable gas from the storage tank 802 , and the non-condensable gas in the storage tank 802 can be used as a heating fuel for the pyrolysis device 5 .

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A continuous aluminum-plastic separation pyrolysis system, characterized in that: include: Crushing device, used to crush the material into small pieces that are convenient for pyrolysis production; A preheating and drying device, used for preheating and drying the crushed material; a conveying device is provided between the preheating and drying device and the crushing device, and the conveying device is used for conveying the crushed material to the preheating and drying device; A hot melt device, whose feed port is connected to the discharge port of the preheating and drying device, and the hot melt device is used to heat and melt the preheated and dried material; A pyrolysis device, whose feed port is connected to the discharge port of the hot melting device, and the pyrolysis device is used to pyrolyze the hot-melted material into gaseous substances and solid substances; A condensing device, whose air inlet is connected to the air outlet of the pyrolysis device, and the condensing device is used to condense the gaseous substance and produce cracking oil; A cooling device, whose feed port is connected to the discharge port of the pyrolysis device, and the cooling device is used to cool the solid matter; A screening device, whose feed port is connected to the discharge port of the cooling device, is used to screen the solid substances of different components after cooling.

2. The continuous aluminum-plastic separation pyrolysis system according to claim 1, characterized in that: The preheating and drying device is configured as an open impeller, the cylinder wall of the open impeller is a sandwich structure, the interlayer of the cylinder wall is provided with a heat medium inlet and a heat medium outlet, and the heat medium inlet and the heat medium outlet are respectively connected to the condensing device.

3. The continuous aluminum-plastic separation pyrolysis system according to claim 1, characterized in that: The hot melt device is configured as a sandwich closed impeller, the cylinder wall of the sandwich closed impeller is a sandwich structure, and an air outlet and a hot air inlet are arranged on the cylinder wall.

4. The continuous aluminum-plastic separation pyrolysis system according to claim 3 is characterized in that: The discharge port is arranged on the cylinder wall, and the discharge port is a tapered outlet from large to small.

5. The continuous aluminum-plastic separation pyrolysis system according to claim 1, characterized in that: The pyrolysis device comprises a furnace body, a combustion chamber is arranged in the furnace body, a partition is arranged on the top of the combustion chamber, a non-interlayer closed impeller is arranged on the partition, a gas collecting pipe is arranged on the top of the impeller barrel of the non-interlayer closed impeller, and the gas collecting pipe extends out of the top of the furnace body.

6. The continuous aluminum-plastic separation pyrolysis system according to claim 5, characterized in that: The combustion chamber is provided with a combustion port, and a burner is provided at the combustion port.

7. The continuous aluminum-plastic separation pyrolysis system according to claim 5, characterized in that: The condensing device comprises a condenser and a storage tank, the condenser and the storage tank are connected via an oil pipe, and the storage tank is connected to the combustion chamber via a non-condensable gas pipeline.

8. The continuous aluminum-plastic separation pyrolysis system according to claim 7, characterized in that: The condenser is a shell and tube water tank.

9. The continuous aluminum-plastic separation pyrolysis system according to claim 1, characterized in that: The cooling device is configured as a sandwich closed impeller, the cylinder wall of the sandwich closed impeller is a sandwich structure, the interlayer is configured in two sections, the cylinder wall of the interlayer in the front section is provided with a hot air outlet; the cylinder wall of the interlayer in the rear section is provided with a medium port and a discharge port, the discharge port is provided with a sealed discharger, and the medium port is connected to an external cooling liquid supply device.

10. The continuous aluminum-plastic separation pyrolysis system according to claim 1, characterized in that: The screening device is configured as a vibrating screen, and the vibrating screen is provided with two different discharge ports, respectively used to discharge the solid substances of different components.

Images